Long-term prospective studies demonstrate a high success rate of Straumann implants in partially or fully edentulous patients both with early and conventional loading (Salvi et al. 2004, Lambrecht et al. 2003, Cochran et al. 2002, Weber et al. 2000, Buser et al. 1997). Before the introduction of CAD/CAM technology to the field of implant dentistry in the beginning of 1990's (Priest 2005), the available approach for restoring single dental implants was either with stock or cast custom abutments and a ceramo-metal crowns. In spite of the satisfactory results that this conventional treatment approach has achieved, several disadvantages have been recognized. First, non tooth-colored abutments possess the problem of bluish appearance of overlying tissue in cases of thin gingival biotype (Barclay et al. 1996, Prestipino and Ingber, 1996). Second, with stock abutments ideal emergence profile can not be achieved (Daftary 1997), a disadvantage that was reduced with the use of custom abutments. However, custom abutments present other disadvantages including possible imprecision of fit due to inaccuracies associated with impression, waxing, investing and casting procedures and the negative effect of the gold alloy on the peri-implant mucosal barrier as demonstrated by Abrahamsson in 1998 (Abrahamsson et al 1998 ).